package net.lshimokawa.pap6;

public class Calculadora {

	public final int sumar(int a, int b) {
		return a + b;
	}

	public final int restar(int a, int b) {
		return a - b;
	}

	public final int multiplicar(int a, int b) {
		return a * b;
	}

	public final int dividir(int a, int b) {
            if (b==0) { return -1;} else { return a / b ;}
	}
}
